The most successful entrepreneurs are the first to admit that they don’t know everything. They are constantly stretching and challenging themselves.

They understand that the acceptance and application of new ideas and perspectives are not just invaluable elements for the growth and longevity of their companies. They are the things that will make them stronger leaders.

We asked 32 founders to share with us the kinds of new lessons they are excited to be learning right now.

Getting out of your comfort zone

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Angie Hicks

Name: Angie HicksCompany: Angie’s List Lesson: I’m always learning through change and how to manage change. That is one thing I tell people that I’m the anti-change person. But you have to learn how to evolve and work through it and guide teams through that process too. That’s one of the things I’m focusing on right now and something that is a continual thing.

Becoming savvier about numbers

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Bumble

Name: Whitney WolfeCompany: BumbleLesson: I’m learning a lot about accounting. I’m not super math savvy, but I think it’s something that is incredibly important to any business. I’m working on that and learning more about different corners of the business. I'm really trying to educate not only myself but the rest of the team in categories they might not specialize in.

The importance of trial and error

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Zola

Name: Shan-Lyn MaCompany:Zola Lesson: Every day I'm learning more about leading a fast-paced tech startup. I've learned the most from the many experiments we run within every function every day. We're all learning together. I used to think the great startups knew what they were doing and there were playbooks you could apply. I'm realizing that every situation is so different based on industry, people and timing. You need to test all the hypotheses and see what works for your particular case.

Raising a family

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Lyft

Name: John ZimmerCompany: LyftLesson: I’m learning how to be a father. It’s super important, because I want to take great care of my daughter, but I also think that there is so much noise in today’s world. And the most important thing we do is raising a family and taking care of our kids, because I think they can have a really powerful impact. I want her to be happy and have a positive impact on the people and the world around her.

How to grow a company culture

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RewardStyle

Name: Amber VenzCompany:RewardStyleLesson: The value of our foundation. A strong foundation is what allows you to scale, allows you continued success and that comes back to planning as well. We're six years into RewardStyle, and I look at it from a technical perspective and also from a cultural perspective. This is the time where if we hadn't put the right things in place we would start seeing the company fracturing or breaking down. It's understanding the value of doing things right.

Providing great customer service

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Box

Name: Aaron LevieCompany: BoxLesson: It’s not so much new as something I’m diving into with more passion. I’m learning about how companies deliver world-class customer service. I’m learning from a range of businesses from Disney to Starbucks, reading a lot of books of those businesses and the founders of those organizations.

How to be more mindful

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BloomThat

Name: David BladowCompany:BloomThatLesson: I’m in a meditation program, so I’m learning about mindfulness. The most important thing that an entrepreneur can do is put yourself in a place where your mind is sharp and fresh. Any practice the more you do, the better you get.

Finding a new hobby

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Brit + Co

Name: Brit MorinCompany: Brit + CoLesson: My husband and I have committed to becoming better photographers together. We actually started off the year with a photo excursion to the Joshua Tree desert in southern California, and have also recently been to Iceland for a photo trip among volcanoes and glaciers. It’s such a fun way to learn something new, see the world and reconnect as a couple.

How to get mentally stronger

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Pure Barre

Name: Carrie DorrCompany: Pure BarreLesson: I’m learning more about the cognitive benefits of exercise. For a long time we've been focused on the physical benefits of exercise but the neurological benefits are really fascinating. It kind of ties in with aging gracefully. How can you live your best life into your 60s, 70s, 80s and beyond.

How to help others succeed

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Postmates

Name: Bastian LehmannCompany:PostmatesLesson: I’m learning right now to really work with a large group of people. While they all have the company in mind, they also have personal goals for their personal lives and careers. I find it fascinating to discover that and help people succeed in both.

One of the questions I ask in every interview is how can the company help them develop on a personal level? I think it’s a duty that we have. Someone who wants to work here for four years can take things from the company and those lessons can help him achieve goals and dreams in the future.

Teaching people how to be great leaders

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Eventbrite

Name: Julia HartzCompany: EventbriteLesson: I have a strength in coaching leaders and keeping focused on the vision of the company. This is critical, because I can’t do it alone and I’ve surround myself with people who make me stronger and better. Build a tribe of teammates, advisors, investors, who will inspire you, push you and support you daily.

Balancing long and short-term goals

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Lucky Iron Fish

Name: Gavin ArmstrongCompany:Lucky Iron Fish Lesson: I'm learning to balance long-term objectives with short-term needs. It is really easy to get caught up in short term objectives -- sales, numbers, meeting quotas, managing your inbox. But you have to take some time to plan to achieve your long-term goals and figure out how to get there.

Staying informed on the latest social media trends

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Randi Zuckerberg

Name: Randi ZuckerbergCompany:Zuckerberg MediaLesson: For me, I even see social media and technology as constant education. The tech is changing so quickly for someone like me. If I didn’t constantly work to keep educating myself, I wouldn't even be hired as a junior social-media manager today. I’m constantly in a state learning, researching what’s going on, what the innovations are, what the social media platforms are doing. There is not day that goes by that I don’t try to educate myself in tech.

Be a better communicator

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Nerdwallet

Name: Tim ChenCompany: NerdwalletLesson: It’s really important to have a multi-disciplinary understanding of a lot of different things to come up with the best answers. I apply this at Nerdwallet. The thing that is important is to have people with different experiences contribute when relevant without too much noise. I’m learning about [building] a collaborative culture, how you facilitate communication and how we get to the truth.

Hiring and building a team

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ThirdLove

Name: Heidi ZakCompany: ThirdLove Lesson: Right now our business is growing very quickly, so I spend a good amount of time interviewing more senior people. The interview process is much longer for these hires, because it's important to find the people with the right skill set, cultural fit and leadership skills. For me, it's learning how to effectively handle those interviews. That's something I've been focused on recently.

How to scale a company sensibly

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BaubleBar

Name: Daniella YacobovskyCompany:BaubleBarLesson: One of the big things that we are learning right now is about continuing to scale up. How do you scale up as a business and do that in a collaborative and cross-functional way? We have grown tremendously in the past few years and one of the big lessons we have learned as a company is how to scale up and put processes in places that allow the company to continue to run smoothly but without tampering the creative spirit.

Providing nuanced feedback and advice

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GitHub

Name: Chris WanstrathCompany: GitHub Lesson: What I have been trying to do is to break down my skills, strengths and weaknesses, and get better at them by practicing. Then I check in with myself. I think I’ve always been good at giving black-and-white feedback, but I’m trying to get better at offering suggestions and minor feedback.

Finding a better work-life balance

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Stephanie Geddes

Name: Alex FriedmanCompany: LolaLesson: To better articulate what I need, and make it happen. In a world where there is so much going on, I have to figure out how to advocate for myself in my own life and to make sure that I have the work-life balance I need.

Trusting that who you hire will do the job you need

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Drybar

Name: Alli WebbCompany: DrybarLesson: Our company has grown so much over the last seven years, and we’ve hired so many people to take over a lot of areas. I don’t make every decision anymore, because we’ve brought on so many great, smart people to help us. But it is hard to let go. I struggle with it, but I find that if I trust in the people that we brought in and let people make decisions, even if they are the wrong ones sometimes, that is a learning process for me.

How to lead people you may never meet.

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G Adventures

Name: Bruce Poon TipCompany: G Adventures Lesson: I'm trying to learn something that I'm calling inspired leadership. As a leader it's easy to lead people when they're all in the same room with you, but I have thousands of employees around the world now and more than 50 percent of them I might never meet in their entire careers with me -- and that's a completely different type of leadership. I want them to wake up every day, love the brand and work harder than they ever have. I want them to achieve that potential. I want them to love what they do. I realized that the future success of the company is going to be whether I can lead this way.

How to build a space conducive to ideas.

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Casper

Name: Jeff ChapinCompany: Casper Lessson: Most of my learning and thinking right now is about how to build and design the right office. I have to learn how to build a design culture, how to inspire people, how to enable them to come up with new ideas. It’s becoming larger and past the point where I actually know what everyone's working on. For long-term sustainability, we have to get that infrastructure and attitude correct.

Take customer feedback into account.

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Brooklinen

Name: Vicki FulopCompany: BrooklinenLesson: I learn from our Brooklinen team and customers every day. And that's important because we're fortunate enough to have surrounded ourselves with really smart, creative and hardworking people. I want to listen, empower them and let their brilliant ideas come to the forefront and support them in executing those ideas. The same thing is from the customer. They are the people sleeping on the product and experiencing our business, our service our products, our advertisements and responding to it via email and social media. So, it's a constant listening, learning and analyzing, so that we can always serve them to the best of our ability and make things that make people happy.

Holding onto values as you grow.

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Nirav Tolia

Name: Nirav ToliaCompany:NextdoorLesson: This idea of of being able to create a high- performance organization and do so in a way that's values-centric, embraces compassion and empathy. Also, being a conscious leader is something that's been a real game-changer for me as a CEO. I think it's critical, because I believe that it's the way that organizations will most likely to win.

Understanding that achieving big goals takes time.

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Frankie Marin

Name: Christene BarberichCompany: Refinery29Lesson: I'm always practicing and trying to get better at patience. Most of the best and most influential things that have happened in my life have taken a longer time to cultivate than I ever thought they would. I think ambitious people have a warped sense of time; we expect everything to happen much sooner than it actually does.

Establishing company culture continuity.

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Sarah Kauss

Name: Sarah KaussCompany: S’wellLesson: What I'm spending my time on right now is culture and learning how to be a great company as we grow and evolve. We grew really quickly, and it's been fun, but I don't want to lose the heart as we get processes and structure. I want to make sure that as a team we don't lose the magic.

Embracing hobbies to clear your mind.

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Barbara Corcoran

Name: Barbara CorcoranCompany:Forefront Venture PartnersLesson: What I'm learning now is how to dance. It's so delicious, this physical movement for the sake of not getting in shape or doing the right exercise but for the sheer joy of movement. I'm also trying to be a better gardener, but I've been doing that my whole life. There is always so much to learn there.

How to put the needs of others before yours.

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Tristan Walker

Name: Tristan WalkerCompany:Walker & Company Lesson: I’m learning how to be the best father I can be. My son turned 3 in September. He's at this stage of his life where he remembers things, and you want to make sure that he's remembering the rights things. He's looking to me for the most positive reasons. So, it's an interesting experience for me to go through, because it forces me to be less selfish.

How to build a company that inspire change.

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Payal Kadakia

Name: Payal KadakiaCompany: ClassPassLesson: I’ve been studying the work by Stanford professor BJ Fogg on behavioral design. He has a three step method for designing products to encourage behavior change. His method is thoughtful, methodical and impactful. I love building products to help people live better lives. It’s what we do at ClassPass and it’s my personal mission as well.

How to make products that appeal all over the world.

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Melanie Perkins

Name: Melanie PerkinsCompany: Canva Lesson: Introducing Canva to more markets has been a huge and incredibly exciting learning experience for the whole team. We have conducted a lot of research into the design aesthetic of many countries and have deliberately created localised templates for various festivities and celebrations. For example, in the United States there is Halloween, but in Germany our design community would seek out Oktoberfest templates. I think it’s important to always put our users first -- what they need and what they look for -- to ensure Canva can be their one-stop-shop for all their design needs. It’s a learning process that never stops as design continues to evolve.

How to get inside the mind of the customer.

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Zach Sims

Name: Zach SimsCompany: CodecademyLesson: We launched a data analysis course in December, and I take almost all of our courses, so I'm in the middle of it. As a CEO, understanding the metrics of your company is super important. I have a pretty good grasp of that, but I'm learning more about how to go even a level deeper and understand what we're doing, how well we're doing it and how we can better help our learners.

Time management in the face of rapid growth.

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Squarespace

Name: Anthony CasalenaCompany: SquarespaceLesson: I'm learning to manage my time effectively at each phase of Squarespace's growth, and I'm making changes to how we run the company to continue to operate at scale. The way we operate and how I engage with an 800-person team is very different from how I did things at 200 or 50.